Strawberry Marshmallow (Japanese: 苺ましまろ, Hepburn: Ichigo Mashimaro) is a Japanese manga series written and illustrated by Barasui about the adventures of four elementary school girls and their older sister-figure. It began serialization in ASCII Media Works' manga magazine Dengeki Daioh in 2002. In 2005, the manga was adapted into an anime television series and a PlayStation 2 video game. Three original video animation (OVA) episodes were later released from February to April 2007. Another two-episode OVA project titled Ichigo Mashimaro Encore was released in 2009. The manga's tagline is "Cute is justice."

There is an unrelated manga by Touko Mizuno with the similar title of Ichigo Mashumaro (苺ましゅまろ).